Games like 9 Childs Street
Games like 9 Childs Street include Layers of Fear (2016), Poppy Playtime, Outlast, Mouthwashing, and From The Darkness. We matched them by the tags players give 9 Childs Street on Steam (Indie, Horror, Psychological Horror, Dark, and First-Person): closest matches first, and among equally close ones the better-known games.

Layers of Fear (2016)
Shared: Horror · Psychological Horror · Indie

Poppy Playtime
Shared: Horror · First-Person · Dark

Outlast
Shared: Horror · First-Person · Psychological Horror

Mouthwashing
Shared: Horror · Psychological Horror · Indie

From The Darkness
Shared: Horror · Psychological Horror · Indie

No, I'm not a Human
Shared: Horror · Psychological Horror · Indie

What Remains of Edith Finch
Shared: Walking Simulator · First-Person · Atmospheric

Visage
Shared: Horror · Psychological Horror · Dark

Firewatch
Shared: Adventure · Walking Simulator · Atmospheric

MiSide
Shared: Psychological Horror · Horror · First-Person

Blair Witch
Shared: Horror · Indie · Psychological Horror

Sally Face - Episode One
Shared: Indie · Psychological Horror · Horror

Phasmophobia
Shared: Horror · Psychological Horror · First-Person

SOMA
Shared: Horror · Psychological Horror · Dark

Buckshot Roulette
Shared: Horror · Dark · Indie

Garten of Banban
Shared: Horror · Psychological Horror · First-Person

Little Nightmares
Shared: Horror · Indie · Dark

Little Nightmares II
Shared: Horror · Dark · Adventure

Still Wakes the Deep
Shared: Horror · Psychological Horror · First-Person

Welcome to Kowloon
Shared: Horror · Psychological Horror · Atmospheric

Outlast 2
Shared: Horror · Psychological Horror · First-Person

Slender: The Arrival
Shared: Horror · Indie · First-Person

Amnesia: A Machine For Pigs
Shared: Horror · Walking Simulator · Psychological Horror

Five Nights at Freddy's
Shared: Horror · Indie · Psychological Horror